Molding-machine for leads of nets, &amp;c.



E. MAUNULA.

MOLDING MACHINE FOR LEADS 0F NETS, &c.

APPLICATION FILED MAR. I6, I9I4.

Patented Jan. 4,- 1916.v

2 SHEETS-SHEET l.

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W1 n ess es.

ummm/I M ANOCIRAPH C0.. WASHINGTDN. D. c.

E. MAUNULA.

MOLDING MACHINE FOR LEADS 0F NETS, Gac.

APPLICATION FILED MAII. 1s, 1914.

1,166,703. Patented 13114, 1916.

2 SHEETS-SHEET 2.

WITNESSES: I l VENTORZ 7'? 'ZZZZZ d,

COLUMBIA PLANOURAPH co.. WASHINGTON. D.

Enix Mii-Urrutia. or astenia, oaneou.

IVIOLDNG-MACHINE FOR LEADS 0F NETS, 65C.

To all 1li/0m t may concern:

Be it known that I, ERIK MAUNULA, a citizen of the United States,residing at Astoria, in the county of Clatsop and State of Oregon, haveinvented new and useful lmproveinents in Molding-Machines for Leads ofNets, &c., orP which the following is a specification.

This invention relates to a casting or molding machine for the formationof hollow tubular leads or weights of the type applicable to fish nets,seines and other analogous purposes.

lt is an object of the present invention to provide a machine whereintubular split leads or weights for ish nets, seines and the like can bequickly cast in the desired shape and size in large numbers.

It is a further object'of the invention to provide a casting or moldingmachine for producing tubular split molded bodies, the machine beingprovided with triple mold sections, with means for moving two of saidsections with relation to a stationary section and to provide a cuttermovably mounted upon one of vthe mold sections, one of which sectionsalso forms a stripper for the cast bodies from the stationary section.

It is a particular object of the present invention to providea castingor molding machine with core mold members and movable mold sections, thecores and movable mold sections coperating to form an elongated arcuatechamber or matrix with a puller or bar member for producing in the castpiece a longitudinal slit.

It is a further object to provide a watercooled molding machine.

The invention consists of a molding machine with a stationary mold ormatrixforming member and a. plurality of matrix- Jforming sections, allcooperating to produce the desired matrix chamber, and further consistsof a cutter movably connected to one of the mold members, and includes asingle operating lever whereby the several movable elements of themachine are moved, means being provided for the timing` of the movementof the several elements.

Figure l is a side elevation of the mold with the parts shown in theclosed or cast' position. Fig. 2 is a vertical section of the machinecentrally through one of the mold chambers. Fig. 3 isa rearend view ofthe machine. Fig. l is a plan view of the machine wi'th the moldsections in open posi- Patented Jan. et, 19165.

Application led March y16, 1914. Serial Nu. 824,891.

tion. Fig. 5 is a perspective of one ofthe mold leads. Fig. 6 is atransverse vertical section in open position. Fig. 7 is a transversevertical Asection in closed position. Fig. 8 isa vertical, longitudinalsection in closed position. Fig. 9 isa vertical, longitudinal section inopen position.

In the drawing, a is a'handle or lever` mounted upon'a fulcrum rod jwhich is journaled in forwardly extending arms 0r frame d, Fig. 2, whichmay be bolted or otherwise fastened to a suitable table or bench g.Above the fulcrum f there is connected to thearms of thevlever ay linksb2 which extend along the sides of the frame and connect to pivot pins sprojecting from'- the ends of a mold or matrix section es,which= isslidably mounted upon the frame arms d,

and beneath guide rails fu, suitably secured.l

to the arms L The slidable matrix section s is provided with a number ofparallel matrix chambers y, the inner portions of which.

are of larger diameter than the outer portions, the latter extending tothe rear vertical face of the mold section s, andnbeing formed with aflared or dove-tailed portion y. lThe matrix chamber y of the moldsection s forms approximately a chamber which in the instance shown isdesigned to produce a fish-net lead shown at 2, Fig. 5V, the othen partof the' mold chamber for producing the.-

lead being formedpartly in an upper slid- Vable mold section t., alsomovable between:

the arms d and the upper guides e and in the vsame plane with thecomplementary mold section s.

lThe slidable quarter mold section t is provided with outwardlyprojecting pinstV at its ends on which are mounted linlrs 0, one on eachside of the frame, these being slot-- ted aty c to allow for anindependent movement or the half mold section s by the hand lever a'independently of the quarter mold t.

As'clearly shown in Fig. 4,. there is provided a lower quarter sectionor mold piece P, having a plurality of quarterl matrices p which, inconjunction with the quarter matrix chambers of theupper section t andthe front section s forms a complete matrix chamber of the desiredshape.

It is desirable in the presentl invention to cast tubular, longitudinal,split leads 2 which may be applied'at any time as Vdesired bv clippingover and being lclosed upon the fish-net strands. Accordingly there areprovided in this case, and rigidly securedfon n'iultiplicity of theweights or leads the stationary mold section l?, a plurality of centercore rods or pins the diameters of which are to produce the desired sizecore in the receiving chamber in the lead 2 these pins being axiallymounted in the matrix chambers, and of such length so that when the moldsection s is moved toward the stationary section to the closed positiom2, the ends of the pins will project into the reduced outer ends i/ ofthe section s, thus operate to close or plug' the openings of thechamber 8, and will at the same time form inner annular chambers for thereception of the molten lead. rihe lower portion of the core pins arelongitudinally shaped to form a bar of the slrape indicated by openingsai of the mold section l?, Fig. 3, the lower longitudinal, rieid portionof the bars, engaging` the bottom of the respective matrix chambers., soas to form arcuate or longitudinah split leads 2, of 2.

Secured to and projecting` rearwardly from the upper mold section t israck bar Z running' beneath and eilig/aging a pinion la? which is looseon the transversely extending shaft m., and turns between the collar nand the clutch member o which is fast on the shaft m.5 and is engagedand operated by clutch member It on the pinion 7i. lhe clutch members itand o are so proportioned and designed that the pinion may have somelost motion on its shaft m before it operates to turnably engage theshaft clutch member 0 as indicated by the space between It and o, Fig.3.

@n the shaft m there is secured a frame J having` a transverselyextending bar t toward, and from which there is movable a sprue orpouring trough i, which is provided with a plurality of sprue aperturesr adapted to be brought into reg, ster with similar apertures formed byopposing semi-circular apertures 3 and l formed respectively in thecooperating' adjacent edges of the mold sections s and t, as shown inFigs. 2 and 1l. rllhe trough plate is movably mounted in the swinginfTframe d, and may move from the full line positionS F Ll to the dottedline position for purposes to be hereinafter described.

The operation of the machine is as follows: Assuming that it is desiredto cast a 2 in the machine, the operator grasias the lever o and throwsthe saine forwardly over the machina the iii-st portion of its movementfrom position o, l, to position a? operating,` to shift the forward moldsection s toward the mold section t, Fig'. l; subsequent movement of thehandle 5. forces the mold section s against se tion t, and these aremoved uniformly together rearwardly, so that the raclr Z will engagepinion h and the clutch members it and o being in abutment at this time,the pinion it will revolve the shaft m,

and this in turn carrying the frame or leaf J upwardly and forwardlyover the center of the shaft m, whereupon the frame el' may swine;freely forward and assume a position in Fig. l over the mold sections sand t as they move into matrix forming` position over the lowerstationary quarter mold B, Fig. 2. l/ihen in this position the sprueholes 9 of the trough r aline with the holes formed by the notches 3- fL, forming sprue holes for the closed mold sections s and t, and theoperator may then pour molten material into the trough r from which itwill iiow into the matrix chambers y.

Cold water may run through the chambered mold section P through means ofa water supply pipe c connected to the chambered mold l), and thusrapidly cool the mold members and increase the rapidity with which leadsmay be cast, because of the rapid cooling and hardening,` of the moltenmaterial. As soon as the leads have solidified in the mold the operatormay then pull the handle outwardly from the machine` the initial motionthrough means of the links b acting directly upon the mold section s, tomove the latter away from the stationary mold section l), and when thelinks c have been moved sufficiently so that the ends of the slots cwill allow the initial movement of the mold section s before anymovement of the nold section t, then the pins t of the mold section twill be engaged by the end walls of the links c, and the mold section twill then be drawn forwardly as the handle is pulled back.Simultaneously with the forward movement of the mold section t and itsconnected rack Z the pinion L will through means of its clutch member Itenthe cooperative clutch member o, and this will-in turn revolve theshaft and serve to lift the trough, carrying; frame il from positionover the mold t, the latter during` its forward movement away from thestationary section P forming an ejector serving to strip the cast leads2 from their chambers and the core pins, and allow them to fall from theends of the core pins. During; the opening1 movement of the moldsections s and t the trough 7" acts as a knife or cutter to sever thematerial in the sprue holes 0" from the weights 2 in the matrices,trough i being; allowed to have an independent movement in its frame el.so as to further facilitate the shearing' off of the sprue material, asshown by dotted lines in Fig. 1l.

Having thus described my invention, what l claim and desire to secure byLetters Patent is:

1. In a casting machine, the combination of eoperating mold sections,one of said sections forming' a quarter of the mold chamber andincluding a core, another forming` an ejector and a second quarter ofthe mold chamber, and a third cooperating 1 member, a second Vmoldsection4 cooperating the sections are closed or opened.

b. ilie combination in a casting machine,

oia sectional mold, comprising a core inem;4

bei', a complementary mold section having limited movement independentof the core With the core member and with the first.- named section toinclose a mold chamber, and means. for coordinating the movements oi"the sections so that in opening the mold the second-named section movesfirst to clear it of the cast and snbseouentl7 the firstnamed meldsection movesA to act asV an ejector to the cast.

in a lcasting machine, the combination oi? a coreV member, a pluralityof movable mold sections cooperating with the coreV member to inclosemold chamber, means ior giving the mold sections independent butccordinate` movement in opening and closing, a water jacket inconnection With theV core member, and a hingedV trough With means forgiving it cordinate movement With-the mold sections. i

5. rThe combination in a casting machine, l

ot a stationary mold section With matrix chambers, a. plurality ot'movable mold sections cegerating with the stationary vmold sections tocomplete the matrix chamber, an operating lever, means actuated bythelever i'lcr moving the movable mold sections into closed moldingposition, and a sprue trough movable by one of said mold sectionsthrough the instrumentality of said lever into and out ot engagementWith the sections.

6. rl"he combination in a machine for casting tubular pieces, astationary mold section With matrix chambers, a `plurality of movablemold sections cooperating With the stationary mold sectionsto comple-tethe matrix chamber, an operating lever, means actuated by the lever formoving the movable mold sections through the instrumentality ot' saidlever, and a spriie trough operated by the lever toand :trom the mold`sections, said sprue trough being slidably mounted to act shear fashionto sever the spine material 'from the cast'rpieces in the matrices.

7. In a. casting machine, the combination stationary mold section With apluot matrix cavities, complementaryv and independently movable moldsections closable to coperate with the stationary sec-jV tion tocomplete thel matrix chambers, a svfingable trough Withv sprue holes,communicating' with the matrix chambers, and-a single operating leverwhereby the'several. movable elements ofthe mold machine may bebroughtinto casting position, and subse-'L Vquently movedtrom casting position.

8. In a casting machine,the combination of astationary mold sectionvvith` a plurality of matrix. cavities,` complementary and independentlymovable pmold `sections closable to cooperate vvitli'rthe stationarysection Vto `complete the 'in'.atriar vchambers, a sivingable troughWithspr-ue lio-les, c'omii'iuso V nicating with the matrixcliambers, asingle operating lever',andlmeans connected to thelever, land movablelelements whereby the several'mcvable elements of thel mold ma-` chinemay be brought into casting position,

kand eject the casting pieces from tlie'inatrix chamber. Y, Y. v

9. ln a casting machine, the combination with a stationary mold vsectionhaving matrix cavities of `core pins projecting into the cavities,relatively movable lcomplementary7 'mold sections each with cavitiescooperating With those oitthe stationary mold sections to produce matrixcavities ot a iorm to produce the cast' pieces, and means for opening'the mold sections by moving the movable sections successively in thesame direction and in .spaced relation to eachv other and to thestationary section..

10. Inafcasting machine, the combination With a-stationary mold sectionhaving matrix cavities of core pins projecting' into the cavities,complementary movable lmold sections With-cavities cooperating with thestationaryinold sections to produce matrix cavities of a form to producethe cast pieces, means for opening and closing the mold sections inproper sequence, said means com-l prisingl a single hand lever andconnections between said lever and the movable mold sections for :movingthe latterin predetermined order to closed and open positions.

ll.v In' a casting machine, the combination with a stationary moldsection havingina triX cavitiesv ot' core pins projecting into thecavities, complementary Ymovable mold sections WithL cavitiescoperatingivith the stationary mold sections to producematrix cavitieso-a form to produce the cast pieces, izo

means for opening and closing the .mold sectioiisin proper sequence,said means ccmprisin'g a single handlever and movingconnections betweensaid lever and the movable mold sections for moving the latter inpredetermined order to closed and open positions, and a shearing deviceWith lsprue vholes adapted to be moved into position to communicate Withthe matrix chambers iio V when the mold sections are closed, said devicebeing operable through the instrumentality of said lever.

12. ln a casting machine, a stationary core element, a mold sectionmovable longitudinally of the core element, a second mold sectionmovable longitudinally of the core element and relative to the iirstmold section, and a trough operable by one of the mold sectionssubsequent to the initial movement of the last section.

13. In a casting machine, a stationary mold section having matrixcavities and core pins secured on the section and projecting across thecavities, movable mold sections having` matrix cavities, the cavities ofsaid sections cooperating to form a molding chamber, said core pinsprojecting from one end oli the chamber to the other, so as to form asubstantial tubular cast piece, said core pins being provided on oneside with a longitudinally extending rib reaching to the bottom of rthematriz; chamber for the production of the Ylongitudinal split,approximately cylindrical cast piece.

14. rlhe combination in a casting machine of a plurality of chamberedmold sections, means for relatively opening or closing the sections uponcasting chambers, a trough with sprue holes registering with saidchambers, said trough being movable to and trom the mold sections byoperative connection with one of said sections, and a single operatinglever for actuating` the several movable elements in predetermined time.

15. The combination in a machine for casting pieces, a relativelyTstationary mold section with matrix cavities, a plurality of movablemold sections, all of which coperate to form when in closed positiona-multiplicity oi casting-` chambers, an operating lever pivotallyconnected to one of the said mold sections for moving the same, andconnecting means between the movable sections whereby one is permittedto move a predetermined distance without moving effect upon the other,and for subsequently moving the same.

16. The combination in a machinefor casting pieces, a relativelystationary mold section with matriX cavities, a plurality of movablemold sections, all of which coperate to form, when in closed position, amultiplicity of casting chambers, an operating lever pivotally connectedto one of the said mold sections for moving the same, connecting meansbetween the movable sections whereby one is permitted to move apredetermined distance without moving edect upon the other, and forsubsequently moving the same, and a sprue trough movable to and fromthe, closed position of the mold sections by one of said movablesections.

17. ln a casting` machine, a sectional mold including a movable section,a pouring trough mounted for movement to and from the mold by themovable section, and a connection between the trough and movable sectionadapted for moving the trough on movement of the mold section to openthe mold and pemitting of initial independent movement of the movablesection relative to the trough to sever the cast material 'from thelatter.

18. ln a casting machine a stationary mold section, a slidable moldsectionmovable toward and away from one end oi' the stationary section,and a second slidable mold section cooperating with the top of thestationary section and the inner end of the :first named slidablesection.

19. ln combination with a stationary mold section, a pair of' slidablemold sections which cooperate with the stationary section to form amolding chamber, and means to first slide one of the slidablc sectionsaway from the other two sections and to subsequently slide the thirdsection.

20. ln a casting machine, a sectional mold including a movable section,a rack connected to the latter, a pouring trough, and a movable supportoperably connected to the rack whereby on movement of the movable moldsection the trough is moved to or from the mold.

21. ln a casting machine, a sectional mold including a movable section,a swingingly mounted frame operable by the movable mold section, and apouring trough bodily and movably supported on the swinging frame.

22. lncombination with a mold having a movable section, a pouring troughoverl ing the mold, and means associated with the movable section andtrough whereby said means will first relatively move the movable sectionand the mold so as to shear the cast and upon further and continuedmovement will move the trough away from the mold.

ln testimony whereof l have hereunto set my hand in the presence of twosubscril ing witnesses.

ERlK MAUNUL A.

lllitnesses z W. L. WARREN, C. B. Sacar.

Copies of this patent may be obtained for ve cents each, by addressingthe onnnissioner of atents,

W ashngton, D. C.

